Road grader and drag



J. IVI. IERRING.

ROAD GRADER AND DRAG.

APPLICATION FILED IEB. I7, 1920.

UNITED Asmh-:s

.msm M. mame, or eiwEsBEcx, Taxes.

ROAD (manna AND DRAG.

Specification of Letters Patent.

. Patented June 11, 1921.

Application led February 17, 1920. Serial No. 359,432.

To all whom it may concern:

Be it known that I, Jnsin M. HERRING, a citizen of the United States, residingl at Groesbeek in the county of Limestone and State of rl`exas, have invented certain new and useful Improvements in Road Graders and Drags, of which the following is a speciiication.

This invention relates to new and useful improvements in road graders and drags.

The object of the invention is to provide means for crushin the clods on fresh graded roads also to leve the surface at the same time.

In carrying out the invention sections are arranged on' each side of a tongue. Each section includes a frame in which a roller is journaled. A pair of hanger arms are hinged to the rear of the frame so as to dispose a drag blade at a-forwardly directed angle. Means for vertically adjusting the blade is provided and a mud scraper carried by the frame engages the roller.

The invention will be more readily understood from a reading of the following speciiication and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Figure 1 is a side elevation of a scraperconstructed in accordance with this invention, and

Fig. 2 is a plan view of the same.

In the drawings the numeral 10 designates a rectangular frame of a scraper section or unit. I have shown two of these frames connected at the center of the machine by a brace frame 11. A tongue 11 has its rear end fastened to the front end of the frame 11. From each side of the tongue a diagonal brace 12 extends rearwardly and has an inturned ange 13 by which it is fastened to the outer end of the frame 10.

A hanger 14 depends from each end of each fra-Ine 10 and has a bearing box 15 at its lower end receivin the trunnions 16 of a crushing roller 17. rom the rear bar of each frame 10 a pair of spring arms 18 depend and carry a scraper blade 19 bearing on'the surface of the roller 17 just above its center for the purpose of removing mudand other adhering matter from the surface of the roller and keeping the same clean. A

From the rear of each frame 10 and at each end thereof a pair of ears 20 extend rearwardly. An angular arm` 21 extends from the inner pair of ears while a shorter angular arm 22 extends from the outer pair of ears. Each arm has a 4downturned standard 23 plvoted at 23 to the arms and these standards are inclined inwardly and forwardly, and cary a rading blade 24 on thelr lower ends. t w l be seen that each blade 24 1s dlsposed at an angle in a forward directlon to the transverse axis of the machine.` A rigid shank 25 extends upwardly from the center of the blade to a point above the `arms where it is pivotally connected to the rear end of a link 26. Each link 26 extends forwardly and is pivoted to the lower end of a lever 27 mounted on a locking segment 28 projecting upward from a bracket 29 secured on the top of the tongue 11. Each lever has a locking plunger 30 for fastemng the lever in posltion. By pulling rearwardly on a lever the standards 23 are swung by reason of the pivot joints 23 by which they are connected with the arms 21 and 22, and thus the angle of the blade 24 is adjusted.

This device is designed for grading a freshly worked road surface and it will be noted that a space is left at the center between the scraper blades so as to leave a row of soft dirt along the center of the road, and the two blades diverging forwardly from this row not only tend to scrape the dirt up toward the center but to more evenly spread and grade the dirt. The machine is very simple and easy to keep in repair. By changing the an le of inclination of the blade 24 more or Fess dirt is collected as will be obvious.

What I claim, is:

1. In a road surface grader, a pair of scraping units each comprising a frame, a roller journaled in each frame, a mud scraper carried by each frame and engaging the roller thereof, a scraper blade disposed in the rear of each frame, jointed arms connecting the scraper blade with the rear end of the frame, a shank projecting upwardly from each scraper, and a lever adjusting device having connection with the shank of the scraper of each frame.

2. In a road surface grader, a plurality of transverse frames, hangers depending from the ends of the frames, land rollers journaled in the hangers, mud Scrapers depending from the rear ends of the frames and engaging the rollers, means for rigidly connecting the frames and spacing the same apart, a tongue connected to the frame conmeeting` means, braces extending from the tongue to the ends of the frames, ears projecting from each end of the rear of each frame, a long arm projecting from the inner ears of each frame, a' short :t1-m project.-

" ing from the outer ears of each frame, stand- :u'ds pivoted to the ends ofthe arms and depending therefrom, a lscraper blade secured to the lower ends of each pair of standards; an upright shank extending from each 10l blade, a link extendin forwardly from each shank, and adjusting evers mountedv on the K tongue and connected with thelinks on each side of the machine. v

In testimony whereof I affix my signature. 15

J ESIE M. HERRING. Y 

